title: Ammonium 2-(3,4-di-methyl-benzo-yl)benzoate dihydrate.
abstract: In the anion of the title compound, NH4 (+)·C16H13O3 (-)·2H2O, the benzene rings are twisted with respect to each other by 73.56 (10)°. In the crystal, extensive N-H⋯O and O-H⋯O hydrogen bonds link the cations, anions and lattice water mol-ecules into a three dimensional supra-molecular structure.
authors.affiliation: College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, People's Republic of China.
authors.forename: Ming-Hui
authors.initials: MH
authors.lastname: Zhang
authors.forename: Yue-Lin
authors.initials: YL
authors.lastname: Yuan
authors.forename: Jun-Feng
authors.initials: JF
authors.lastname: Kou